> ## Documentation Index
> Fetch the complete documentation index at: https://veniceai-feat-models-redesign.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# GLM 5.3 Flash API

> GLM 5.3 Flash API on Venice: 1M context, $0.15 input and $0.50 output per 1M tokens. Private and end-to-end encrypted variants.

export const HubMount = ({view, children, ...props}) => {
  const [hub, setHub] = useState(null);
  const [failed, setFailed] = useState(false);
  useEffect(() => {
    let alive = true;
    const w = window;
    if (!w.__veniceModelHub) {
      const urls = w.location.hostname === 'localhost' ? ['http://localhost:3333/data/model-hub.bundle.json', '/data/model-hub.bundle.json'] : ['/data/model-hub.bundle.json'];
      const load = i => fetch(urls[i], {
        cache: 'no-cache'
      }).then(res => {
        if (!res.ok) throw new Error(`bundle ${res.status}`);
        return res.json();
      }).catch(err => i + 1 < urls.length ? load(i + 1) : Promise.reject(err));
      const Frag = <></>.type;
      const h = (type, props, ...kids) => {
        const T = type;
        const {key, ...rest} = props || ({});
        if (!kids.length) return <T key={key} {...rest} />;
        if (kids.length === 1) return <T key={key} {...rest}>{kids[0]}</T>;
        return <T key={key} {...rest}>{kids.map((kid, i) => <Frag key={i}>{kid}</Frag>)}</T>;
      };
      w.__veniceModelHub = load(0).then(bundle => new Function(`return (${bundle.code})`)()({
        h,
        Fragment: Frag,
        useState,
        useEffect,
        useRef,
        useMemo,
        useCallback
      }));
    }
    w.__veniceModelHub.then(instance => {
      if (alive) setHub(instance);
    }).catch(() => {
      w.__veniceModelHub = null;
      if (alive) setFailed(true);
    });
    return () => {
      alive = false;
    };
  }, []);
  const View = hub ? hub[view] : null;
  if (View) return <View {...props}>{children}</View>;
  if (failed) {
    return <div className="vx-mount is-failed">
        <p className="vx-mount-note">The interactive model catalog could not load. The full data is below.</p>
        {children}
      </div>;
  }
  return <div className="vx-mount" aria-busy="true">
      <div className="vx-mount-skeleton" aria-hidden="true"><span /><span /><span /></div>
      <div className="vx-mount-source">{children}</div>
    </div>;
};

<HubMount view="ModelPage" data={{"family":{"slug":"glm-5-3-flash","name":"GLM 5.3 Flash","modality":"text","task":"chat","provider":"zai","description":"GLM-5.3 Flash is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context.","primary":"z-ai-glm-5-3-flash","variants":["z-ai-glm-5-3-flash","e2ee-glm-5-3-flash"],"created":1787270400,"updated":1788652800,"privacy":["private","e2ee"],"openWeights":true,"sets":["venice_recommendations"]},"models":[{"id":"z-ai-glm-5-3-flash","name":"GLM 5.3 Flash","type":"text","modality":"text","task":"chat","variant":"standard","provider":"zai","created":1787270400,"description":"GLM-5.3 Flash is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context.","source":"https://huggingface.co/zai-org/GLM-5.3-Flash","privacy":"private","sets":["venice_recommendations"],"openWeights":true,"text":{"context":1048576,"maxOutput":131072,"reasoning":{"supported":true,"effort":["none","low","medium","high"],"defaultEffort":"high"},"caps":{"tools":true,"structured":true,"vision":true,"maxImages":10,"videoInput":true,"webSearch":true,"code":true}},"pricing":{"input":0.15,"output":0.5,"cacheRead":0.03,"blended":0.2375},"headline":{"value":0.2375,"unit":"per 1M tokens","basis":"blended"},"endpoints":[{"id":"chat","method":"POST","path":"/chat/completions","name":"Chat Completions","status":"stable","recommended":true},{"id":"responses","method":"POST","path":"/responses","name":"Responses","status":"alpha"}],"family":"glm-5-3-flash"},{"id":"e2ee-glm-5-3-flash","name":"GLM 5.3 Flash","type":"text","modality":"text","task":"chat","variant":"e2ee","provider":"zai","created":1788652800,"description":"GLM 5.3 Flash running in a Trusted Execution Environment (TEE). A fast, low-cost multimodal model with 1M context. Hardware attestation evidence is available for independent verification of enclave identity and configuration.","source":"https://huggingface.co/zai-org/GLM-5.3-Flash","privacy":"e2ee","openWeights":true,"text":{"context":1000000,"maxOutput":32768,"reasoning":{"supported":true},"caps":{"tools":true,"vision":true,"maxImages":1,"webSearch":true,"code":true,"e2ee":true,"tee":true}},"pricing":{"input":0.16,"output":0.54,"cacheRead":0.038,"blended":0.255},"headline":{"value":0.255,"unit":"per 1M tokens","basis":"blended"},"endpoints":[{"id":"chat","method":"POST","path":"/chat/completions","name":"Chat Completions","status":"stable","recommended":true},{"id":"responses","method":"POST","path":"/responses","name":"Responses","status":"alpha","note":"E2EE models require /chat/completions with E2EE headers."}],"family":"glm-5-3-flash"}],"related":{"similar":[{"slug":"qwen-3-8-flash","name":"Qwen 3.8 Flash","provider":"alibaba","modality":"text","privacy":["anonymized"],"created":1788998400,"headline":{"value":0.2275,"unit":"per 1M tokens","basis":"blended"},"variants":1},{"slug":"gpt-6-luna","name":"GPT-6 Luna","provider":"openai","modality":"text","privacy":["anonymized"],"created":1790035200,"headline":{"value":0.25,"unit":"per 1M tokens","basis":"blended"},"variants":1},{"slug":"deepseek-v4-flash-0731","name":"DeepSeek V4 Flash 0731","provider":"deepseek","modality":"text","privacy":["private"],"created":1785456000,"headline":{"value":0.21875,"unit":"per 1M tokens","basis":"blended"},"variants":2},{"slug":"mimo-v2-6-flash","name":"MiMo-V2.6-Flash","provider":"xiaomi","modality":"text","privacy":["private"],"created":1790553600,"headline":{"value":0.21875,"unit":"per 1M tokens","basis":"blended"},"variants":1}],"versions":[{"slug":"glm-4-7-flash","name":"GLM 4.7 Flash","provider":"zai","modality":"text","privacy":["private"],"created":1769644800,"headline":{"value":0.145,"unit":"per 1M tokens","basis":"blended"},"variants":1}]},"providers":{"zai":{"slug":"zai","name":"Z.ai","logo":"/images/icons/models/Zhipu.svg"},"alibaba":{"slug":"alibaba","name":"Alibaba Qwen","logo":"/images/icons/models/qwen.svg"},"openai":{"slug":"openai","name":"OpenAI","logo":"/images/icons/models/openai.svg"},"deepseek":{"slug":"deepseek","name":"DeepSeek","logo":"/images/icons/models/deepseek.svg"},"xiaomi":{"slug":"xiaomi","name":"Xiaomi","logo":"/images/icons/models/text.svg"}},"faq":[{"q":"How much does the GLM 5.3 Flash API cost?","a":"$0.15 per 1M input tokens and $0.50 per 1M output tokens, with cached input at $0.03 per 1M. The E2EE variant costs $0.16 input and $0.54 output. Prices are in USD and can be paid in DIEM at parity."},{"q":"What is the GLM 5.3 Flash model ID?","a":"Use `z-ai-glm-5-3-flash` as the `model` parameter. Other variants: `e2ee-glm-5-3-flash` (E2EE)."},{"q":"Is the GLM 5.3 Flash API private?","a":"The Standard variant is private: requests run on infrastructure Venice controls with zero data retention, and prompts and outputs are never stored or used for training. The E2EE variant is end-to-end encrypted: prompts are encrypted on your device and decrypted only inside an attested hardware enclave, so neither Venice nor the GPU provider can read them."},{"q":"What is the context window of GLM 5.3 Flash?","a":"1M tokens of context, with up to 128K output tokens per response."},{"q":"What does GLM 5.3 Flash support?","a":"GLM 5.3 Flash supports function calling, structured outputs, reasoning, image input, web search and prompt caching. Reasoning effort is adjustable with `reasoning_effort`: none, low, medium and high (default high)."},{"q":"Which endpoint does the GLM 5.3 Flash API use?","a":"Call `POST /chat/completions`. `/responses` (Alpha) is also supported."}]}} />

<div className="vx-static">
  <Accordion title="Plain-text specification">
    # GLM 5.3 Flash API

    GLM 5.3 Flash is a large language model by Z.ai, available on the Venice API as `z-ai-glm-5-3-flash`. Private and end-to-end encrypted variants are available.

    GLM-5.3 Flash is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context.

    ## GLM 5.3 Flash API pricing

    | Model ID | Variant | Privacy | Price |
    | - | - | - | - |
    | `z-ai-glm-5-3-flash` | Standard | Private | $0.15 input / $0.50 output per 1M tokens |
    | `e2ee-glm-5-3-flash` | E2EE | End-to-end encrypted | $0.16 input / $0.54 output per 1M tokens |

    ## GLM 5.3 Flash specifications

    | Spec | Value |
    | - | - |
    | Provider | Z.ai |
    | Released | Aug 21, 2026 |
    | Privacy | Private, End-to-end encrypted |
    | Open weights | Yes |
    | Context window | 1M tokens |
    | Max output | 128K tokens |
    | Reasoning effort | none, low, medium, high |

    ## How to use the GLM 5.3 Flash API

    Send requests to `POST https://api.venice.ai/api/v1/chat/completions` with `"model": "z-ai-glm-5-3-flash"` and your API key.

    ```bash theme={null}
    curl https://api.venice.ai/api/v1/chat/completions \
      -H "Authorization: Bearer $VENICE_API_KEY" \
      -H "Content-Type: application/json" \
      -d '{
        "model": "z-ai-glm-5-3-flash",
        "messages": [{ "role": "user", "content": "Explain TEE attestation in two sentences." }],
        "reasoning_effort": "high"
      }'
    ```

    ## GLM 5.3 Flash API FAQ

    ### How much does the GLM 5.3 Flash API cost?

    $0.15 per 1M input tokens and $0.50 per 1M output tokens, with cached input at $0.03 per 1M. The E2EE variant costs $0.16 input and \$0.54 output. Prices are in USD and can be paid in DIEM at parity.

    ### What is the GLM 5.3 Flash model ID?

    Use `z-ai-glm-5-3-flash` as the `model` parameter. Other variants: `e2ee-glm-5-3-flash` (E2EE).

    ### Is the GLM 5.3 Flash API private?

    The Standard variant is private: requests run on infrastructure Venice controls with zero data retention, and prompts and outputs are never stored or used for training. The E2EE variant is end-to-end encrypted: prompts are encrypted on your device and decrypted only inside an attested hardware enclave, so neither Venice nor the GPU provider can read them.

    ### What is the context window of GLM 5.3 Flash?

    1M tokens of context, with up to 128K output tokens per response.

    ### What does GLM 5.3 Flash support?

    GLM 5.3 Flash supports function calling, structured outputs, reasoning, image input, web search and prompt caching. Reasoning effort is adjustable with `reasoning_effort`: none, low, medium and high (default high).

    ### Which endpoint does the GLM 5.3 Flash API use?

    Call `POST /chat/completions`. `/responses` (Alpha) is also supported.

    ## Related models

    * [GLM 4.7 Flash API](/models/glm-4-7-flash): $0.06 input / $0.40 output per 1M tokens
    * [Qwen 3.8 Flash API](/models/qwen-3-8-flash): $0.14 input / $0.49 output per 1M tokens
    * [GPT-6 Luna API](/models/gpt-6-luna): $0.13 input / $0.63 output per 1M tokens
    * [DeepSeek V4 Flash 0731 API](/models/deepseek-v4-flash-0731): $0.17 input / $0.35 output per 1M tokens
    * [MiMo-V2.6-Flash API](/models/mimo-v2-6-flash): $0.17 input / $0.35 output per 1M tokens
  </Accordion>
</div>


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